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YM2612 trouble
Posted: Sun Oct 28, 2007 3:19 pm
by TmEE co.(TM)
Code: Select all
FMnotesOn
HL, FMPORT2
LD A, $28
LD (FMPORT1), A
NOP #2
LD (HL), $F0
NOP #2
LD (HL), $F1
NOP #2
LD (HL), $F2
NOP #2
LD (HL), $F4
NOP #2
LD (HL), $F5
RET
This code should put all keys on, but in Kmod I see that only last one is on...
Is there a bug in Kmod, or I'm not doing something ?
Posted: Thu Nov 01, 2007 5:04 am
by Shiru
If there was such bug in KMod, how so many games can work?
Seems you do all right. Try to output #28 to port 1 each time before output to port 2. I always do so, and all works fine.
Posted: Thu Nov 01, 2007 12:37 pm
by TmEE co.(TM)
Its a bug in Kmod, lots of other drivers that aren't VBL based don't show Key on/offs correctly too.